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Old 29-01-2015, 08:12 PM
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Amaranthus (Barry)
Thylacinus stargazoculus

Amaranthus is offline
 
Join Date: Jan 2014
Location: Judbury, Tasmania
Posts: 1,203
The pick-off prism should ideally be as close to the edge of the TOAG ring as possible, to avoid shading your camera chip - definitely not centre if you can avoid it.
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